Improvement in steam-whistles



0. KRUM ER.

Steam-Whistles.

Patented July 29, |873.

UNITED STATES PATENT OFFICE.

OTTO KROMER, OF SANDUSKY, OHIO.

IMPROVEMENT IN STEAM-WHISTLES.

Specification forming part of Letters Patent No. 141,280, dated July 29,1873; application tiled April 8, 1573.

To all whom t may concern:

Be it known that I, OTTO KROMER, of Sandusky, in the county of Erie andState of Ohio, have invented a new and useful Im provement in Whistles;and I do declare that the following is a true and accurate descriptionthereof, reference being had to the accompanying drawings and to theletters of reference marked thereon and being a part of thisspecification, in which- Figure l is a perspective view of my improvedwhistle with the valves open. Fig. 2 is a vert-ical section of the samewith the valves closed.

Like letters refer to like parts in each iignre.

The nature of this invention relates to the construction of a whistle,more especially designed to be operated by steam, from which a varietyof tones may be produced at will. The invention consists in theconstruction and arrangement ofthe various parts, as more fully setforth.

In the accompanying drawings, A represents the steam or wind pipe, and Bthe bowl of a whistle of ordinary construction. Secured to this bowl, bysuitable connections O, is an elongated open bell, D. This bell isdivided into dil'erent lengths to produce di'erent tones by means of thevalves E, so constructed that any one of them may be made to close atwill, and so that they will open instantly on being released. Thesevalves operate through suitable openings in the side of the bell, soconstructed that when the valves are open there will be little or noleak or escape of steam or wind through said openings. F are t-hevalve-stems, and the valves may be closed by means of a cord secured tothe head of the stem, or in any other convenient manner. G areprolongations of the valves, and terminate in flanges H, between whichand the side ofthe bell are placed the coil-springs J, the operation ofwhich are to withdraw the valves when they are released.

Closing the lowest valve makes the operating part of the bell short, andit emits a high shrill tone. Closing, successively, the valves above lengthens the operating part of the bell, and it sends forth lower sounds.

These valves may, perhaps, be properly termed diapason-stops, and theymay be arranged at distances apart to produce a regular musical scale.

What I claim as my invention, and desire to secure by Letters Patent,is-

In combination with the bell D the valves E, constructed and arranged tooperate substantially as and for the purpose set forth.

OTTO KROMER.

Witnesses J. P. MERRIAM, AUGUST KLoTz.

